Picomolar-sensitive impedimetric sensor for salivary calcium analysis at POC based on SAM of Schiff base–modified gold electrode

Analysis of saliva is a potential diagnostic tool in the management of human diseases. Analysis of saliva in healthy individuals is vital to comparison in a diseased state. Salivary glandular secretion constantly bathes the teeth and oral mucosa. The presence of saliva is vital for healthy oral tissue. Positive correlation has been shown in salivary calcium and phosphate and oral health. We have developed a highly sensitive and selective...